[soo-per-hahy-wey, soo-per-hahy-wey] /ˈsu pərˌhaɪ weɪ, ˌsu pərˈhaɪˌweɪ/
a highway designed for travel at high speeds, having more than one lane for each direction of traffic, a safety strip dividing the two directions, and cloverleaves to route the traffic on and off the highway.
Compare expressway.
any very fast route or course.
(mainly US) a fast dual-carriageway road

information superhighway


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